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One characteristic of a research chemical is that it is for laboratory research use only; a research chemical is not intended for human or veterinary use. This distinction is required on the labels of research chemicals and exempts them from regulation under parts 100-740 in Title 21 of the Code of Federal Regulations . [1]
Roman numerals: for example the word "six" in the clue might be used to indicate the letters VI; The name of a chemical element may be used to signify its symbol; e.g., W for tungsten; The days of the week; e.g., TH for Thursday; Country codes; e.g., "Switzerland" can indicate the letters CH; ICAO spelling alphabet: where Mike signifies M and ...
Chemical Entities of Biological Interest ELIXIR: small chemical compounds from PDBeChem ChEMBL KEGG IntEnz "ChEBI". 60,000 Chematica: Merck: organic chemicals reaction pathway calculation; Beilstein CAS SMILES proprietary 7,000,000 ChEMBL: Chemicals from European Molecular Biology Laboratory EMBL: molecules with drug-like properties "ChEMBL ...
Chemical nomenclature, replete as it is with compounds with very complex names, is a repository for some names that may be considered unusual. A browse through the Physical Constants of Organic Compounds in the CRC Handbook of Chemistry and Physics (a fundamental resource) will reveal not just the whimsical work of chemists, but the sometimes peculiar compound names that occur as the ...
Arduino: an open source computer hardware and software company, project, and user community that designs and manufactures single-board microcontrollers and microcontroller kits for building digital devices and interactive objects that can sense and control objects in the physical world. It is now becoming an essential component for building AI ...
Also acid ionization constant or acidity constant. A quantitative measure of the strength of an acid in solution expressed as an equilibrium constant for a chemical dissociation reaction in the context of acid-base reactions. It is often given as its base-10 cologarithm, p K a. acid–base extraction A chemical reaction in which chemical species are separated from other acids and bases. acid ...
The letters were issued earlier this month to Synthetix, which sells drugs on a website called Helix Chemical Supply, and US Chem Labs after the U.S. regulator conducted a review of their ...
r/science is an Internet forum on Reddit where the community of participants discuss science topics. [2] A popular feature of the forum is "Ask Me Anything" (AMA) public discussions. [ 2 ] As of 2014, r/science attracted 30,000–100,000 visitors per day, making it the largest community-managed science forum and an attractive place to host ...